One question, where the hell did AIDS come from? If its a sexually transmitted disease, then who had it first? And how did they get it if they didn't get from another person?

HIV was already present in chimpanzees in some form. Since our DNA is similar to them, it's not difficult for a virus to make the jump via mutations by a virus' sloppy polymerase (many nucleotide mistakes)! They got into humans via butchery and consumption of chimpanzees in Africa.

HIV was already present in chimpanzees in some form. Since our DNA is similar to them, it's not difficult for a virus to make the jump via mutations by a virus' sloppy polymerase (many nucleotide mistakes)! They got into humans via butchery and consumption of chimpanzees in Africa.

You forgot sexual encounters with chimpanzees, which is what we all know is the reason that humans have AIDs at all